Motion vector prediction method and prediction apparatus thereof

a technology of motion vector and prediction method, which is applied in the direction of signal generator with optical-mechanical scanning, color television with bandwidth reduction, etc., can solve the problems of ineffective mv prediction, large memory space wasted, and inability to provide clear and detailed solutions to problems, so as to save memory space during mv prediction and improve overall efficiency of mv prediction

Inactive Publication Date: 2008-07-03
IND TECH RES INST
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Benefits of technology

[0011]In view of the above problems, the present invention provides a motion vector (MV) prediction method and a prediction apparatus thereof. Through the MV prediction method, memory allocation, and...

Problems solved by technology

Generally speaking, without a proper MV prediction method and a memory allocation and management mechanism, the MV prediction will be ineffective, and a large memory space will be wasted.
Most current techn...

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  • Motion vector prediction method and prediction apparatus thereof
  • Motion vector prediction method and prediction apparatus thereof
  • Motion vector prediction method and prediction apparatus thereof

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Embodiment Construction

[0027]The present invention provides a motion vector (MV) prediction method and a prediction apparatus thereof, which are applicable for a video image encoder / decoder to perform an MV prediction to video images. Taking the implementation aspect of the encoder of FIG. 1 as an example, the realization of the present invention will be applied in the motion vector prediction module 22 (referred to as MV prediction apparatus hereinafter) in the motion vector prediction block 20.

[0028]As the MV prediction method and the MV prediction apparatus 22 provided by the present invention is supported by a memory allocation management mechanism disclosed in the present invention, the limited memory space can be used to realize effective MV prediction, so as to substantially reduce the use of the memory space. In particular, the MV prediction apparatus 22 realized as a hardware can save the cost, and enhance the processing efficiency of the MV prediction. Moreover, as the MV prediction method based...

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Abstract

A motion vector (MV) prediction method and a prediction apparatus thereof are applicable for a video image encoder/decoder to predict an MV of a video image. Firstly, segment a macroblock in the video image into microblocks. Then, configure a row memory and three register memories to register the MV required for prediction. Finally, the MV stored in the row memory or the register memories at a position corresponding to the current microblock to be predicted is used to predict the MV of the current microblock to be predicted in the current macroblock to be predicted. After the prediction is completed and moved to another macroblock or microblock, the MV stored in the row memory or the register memories is updated according to a predetermined storage updating condition.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]This non-provisional application claims priority under 35 U.S.C. §119(a) on Patent Application No(s). 095150065 filed in Taiwan, R.O.C. on Dec. 29, 2006, the entire contents of which are hereby incorporated by reference.BACKGROUND OF THE INVENTION[0002]1. Field of Invention[0003]The present invention relates to a motion vector (MV) prediction method and a prediction apparatus thereof, and more particularly to a motion vector prediction method and a prediction apparatus thereof, capable of saving a memory space required to register other MVs for assisting the prediction when predicting an MV.[0004]2. Related Art[0005]With the rapid progress of the broadband transmission environment, high-quality video image transmission will become an inevitable trend of the future. Moreover, as hardware equipment has become more popular and cheaper, the demand for high-quality video image service is also increased. However, as the data volume for the high...

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Application Information

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IPC IPC(8): H04N7/12
CPCH04N19/52H04N19/423H04N19/61
Inventor CHEN, HSIN-HAOCHANG, CHIH-YUCHEN, OSCAL T.-C.
Owner IND TECH RES INST
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